JPS57148007A - Cooling device for main steam stop valve - Google Patents

Cooling device for main steam stop valve

Info

Publication number
JPS57148007A
JPS57148007A JP3358681A JP3358681A JPS57148007A JP S57148007 A JPS57148007 A JP S57148007A JP 3358681 A JP3358681 A JP 3358681A JP 3358681 A JP3358681 A JP 3358681A JP S57148007 A JPS57148007 A JP S57148007A
Authority
JP
Japan
Prior art keywords
main steam
stop valve
cooling holes
steam
steam stop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3358681A
Other languages
Japanese (ja)
Other versions
JPS6038526B2 (en
Inventor
Akira Katayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3358681A priority Critical patent/JPS6038526B2/en
Publication of JPS57148007A publication Critical patent/JPS57148007A/en
Publication of JPS6038526B2 publication Critical patent/JPS6038526B2/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Abstract

PURPOSE:To reduce the thermal stress of a main steam stop valve for a steam turbine which is a component of a Rankine cycle, by supplying temperature- reduced leaking steam from a steam regulating valve to the cooling holes of the body of the main steam stop valve through distribution headers. CONSTITUTION:Numerous cooling holes 36, 40 are provided at regular intervals in the body 13 of a main steam stop valveI. One end of each of the cooling holes 36, 40 is connected to one of distribution headers 38, 41. The leakage pipes 34, 35 of a steam regulating valve II are connected to the distribution headers 38, 41. The other ends of the cooling holes 36, 40 are connected to recovery headers 37, 43.
JP3358681A 1981-03-09 1981-03-09 Main steam stop valve cooling system Expired JPS6038526B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3358681A JPS6038526B2 (en) 1981-03-09 1981-03-09 Main steam stop valve cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3358681A JPS6038526B2 (en) 1981-03-09 1981-03-09 Main steam stop valve cooling system

Publications (2)

Publication Number Publication Date
JPS57148007A true JPS57148007A (en) 1982-09-13
JPS6038526B2 JPS6038526B2 (en) 1985-09-02

Family

ID=12390614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3358681A Expired JPS6038526B2 (en) 1981-03-09 1981-03-09 Main steam stop valve cooling system

Country Status (1)

Country Link
JP (1) JPS6038526B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046972A (en) * 2012-12-13 2013-04-17 哈尔滨工业大学 Nonlinear automatic undisturbed single valve/sequence valve switching method for steam turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046972A (en) * 2012-12-13 2013-04-17 哈尔滨工业大学 Nonlinear automatic undisturbed single valve/sequence valve switching method for steam turbine

Also Published As

Publication number Publication date
JPS6038526B2 (en) 1985-09-02

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